CN2189681Y - Pressure-stablized compression release valve - Google Patents
Pressure-stablized compression release valve Download PDFInfo
- Publication number
- CN2189681Y CN2189681Y CN 93234844 CN93234844U CN2189681Y CN 2189681 Y CN2189681 Y CN 2189681Y CN 93234844 CN93234844 CN 93234844 CN 93234844 U CN93234844 U CN 93234844U CN 2189681 Y CN2189681 Y CN 2189681Y
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- valve
- pressure
- cover
- pressure chamber
- chamber
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- Expired - Fee Related
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Abstract
The utility model discloses a pressure-stabilized compression release valve. On the basis of a piston type compression release valve, high pressure water enter the prior low pressure side and a water inflow passage 26 is connected with a high pressure chamber. An inlet hole 27 which is arranged on a valve body 1 is connected with a low pressure chamber 28. The prior piston hole is made into a piston hole provided with steps, which ensures that the high pressure chamber 29 is smaller than the low pressure chamber 28 in the piston hole. The high pressure chamber and the low pressure chamber are respectively provided with a corrugated ring (13, 18). The corrugated rings are fixed on a valve rod 21 by a clamping plate 20 and a nut 22 to replace the piston. The utility model has the characteristics of compression release, pressure stabilization, favorable effect, simple structure, low cost, reduction of static pressure, etc. The utility model is especially suitable for equal pressure water supply pipe system of high buildings.
Description
The utility model is a kind of Pressure-stabilizing pressure reducing valve of the piping that is used to supply water.
Reduction valve generally is used for the supply channel of boiler feed water, and its caliber is smaller, and decompression requires also relatively more fixing occasion.At present the reduction valve of typing has three kinds: first kind is diaphragm type, and its principle is to utilize the up and down formation pressure reduction of resistance to water-flow principle at film, and the aperture of coming control valve according to the lifting of film is to reach the purpose of decompression.The bore of such valve is below 50mm, and effect of easing stress is more stable, but because the intensity of film, the amplitude of decompression is restricted, the occasion that should not be used for reducing pressure significantly, and can only subtract hydrodynamic pressure, can not subtract hydrostatic pressure.Second kind is spring, it is to utilize adjusting screw rod to control the height of pressing spring, by the interlock spool aperture of coming control valve, to reach current decompression purpose, its bore is also below 50mm, the aperture that this elastic force that utilizes spring comes control valve in the decompression working procedure, often is accompanied by the valve body vibration, hydraulic pressure is the pulsation shape, voltage regulation result is not as good as diaphragm type in the work, and it also can only subtract hydrodynamic pressure, can not subtract hydrostatic pressure.The third be piston type it be to utilize piston hydraulic pressure height up and down, and be aided with spring and come the aperture of pressure difference before and after the control valve and valve to reach the purpose of decompression.The structure of this kind valve is such, and it comprises: valve body 1, seal gasket press cover 2, valve base 3, sealed bolster 4, spring 5, seal ring 6, bottom 7, valve 8, valve pressing plate 9, copper sheathing 10, pressure regulation spring 11, pressure regulation spring back shaft and cover 12, upper press cover 14, screw press 15, handle 16, nut 17,
Cover 19, valve rod 21, little spring 23, O type circle bowl 24, O type circle 25, seal ring 6 are arranged between valve body 1 and the bottom 7, one guide sleeve is arranged on bottom 7, valve 8 places on the guide sleeve, spring 5 place in the guide sleeve and valve 8 between, sealed bolster 4 places between the valve base 3, be fixed on the valve 8 by seal gasket press cover 2 and valve pressing plate 9, copper sheathing 10 is fixed on the valve body 1,
Have a water inlet duct 26 on cover 19 and the valve body 1, simultaneously, also have another water inlet duct at opposite side,
Be provided with a piston hole in the cover 19, be provided with a piston in the piston hole, piston is divided into hyperbaric chamber 29 and low pressure chamber 28 with piston hole, and hyperbaric chamber 29 is last, and low pressure chamber 28 is following, and water inlet duct 26 links to each other with low pressure chamber, and another water inlet duct links to each other with hyperbaric chamber 29.In the time of in high pressure water enters valve, set up required hydraulic pressure value by handle 16, high pressure water enters hyperbaric chamber 29 by the water inlet duct, and high pressure water promotes piston and moves down, and drives valve rod 21 valve 8 is opened downwards, water flows to low voltage side by the high pressure side, the water that flows into low voltage side is by behind the valve 8, and hydraulic pressure reduces, and low-pressure water enters low pressure chamber 28 from water inlet duct 26, continue to move down with the opposing piston, to keep valve 8 in certain aperture.This kind valve, its bore are also below 50mm, owing to enter the high pressure water in hyperbaric chamber, by the piston seepage, therefore make hydraulic pressure not really stable, influenced voltage regulation result, simultaneously, it also can only subtract hydrodynamic pressure, during water, under the effect of high pressure water, valve 8 always is not in open mode, the hydraulic pressure of low voltage side equates with on high-tension side hydraulic pressure, so it can not subtract hydrostatic pressure.Along with the construction of China's multilayer, tall building, no matter existing these several reduction valve need from its decompression, voltage regulation result or caliber size are all deposited at present.Hot water piping in the tall building, cold feed piping and each industrial cycle water supply piping, all require isobaric water supply for each level, and require automatic voltage regulation, not only requirement can subtract hydrodynamic pressure, and can also subtract hydrostatic pressure, and the bore of reduction valve also corresponding requirements has plurality of specifications, big will surpass 300mm, therefore the little 25mm that is less than, has proposed renewal, higher requirement for the structural type of reduction valve.
The purpose of this utility model is to provide a kind of Pressure-stabilizing pressure reducing valve, and not only decompression, voltage regulation result is good, and can also subtract hydrostatic pressure.
Solution of the present utility model is on the basis of Piston reducing valve, change water intake mode, advance high pressure water from former low voltage side, the duct 26 that will intake links to each other with the hyperbaric chamber, cancel another water inlet duct, the water inlet is set on valve body to link to each other with low pressure chamber, piston hole is made the piston hole of step, and hyperbaric chamber and low pressure chamber crimp ring be set in piston hole, be fixed on the valve rod replacing piston by clamping plate and nut, thereby reach decompression, voltage regulation result is good and can also subtracts the purpose of hydrostatic pressure.
The utility model comprise valve body, seal gasket press cover, valve base, sealed bolster, spring, seal ring, bottom, valve, valve pressing plate, copper sheathing, pressure regulation spring, pressure regulation spring back shaft and cover, upper press cover, screw press, handle, nut,
Cover, valve rod, little spring, O type circle bowl, O type circle, seal ring is arranged between valve body and the bottom, there are being a guide sleeve, valve to place on the guide sleeve on the bottom, spring place in the guide sleeve and valve between, sealed bolster places between valve and the valve base, be fixed on the valve by seal gasket press cover and valve pressing plate, copper sheathing is fixed on the valve body,
Have a water inlet duct on cover and the valve body,
Be provided with a piston hole in the cover, piston hole is divided into hyperbaric chamber and low pressure chamber, and the hyperbaric chamber is on top, and low voltage section is characterized in that in the bottom valve body on every side of copper sheathing is provided with the water inlet,
The piston hole that is provided with in the cover is one the piston hole of step to be arranged, hyperbaric chamber at an upper portion thereof is littler than the low pressure chamber of its underpart, the water inlet duct is communicated with the hyperbaric chamber, the water inlet is communicated with low pressure chamber, in hyperbaric chamber and low pressure chamber, be respectively arranged with hyperbaric chamber crimp ring, gland nut, clamping plate, low pressure chamber crimp ring, the lower end of low pressure chamber crimp ring be pressed on valve body with
Between the cover, its upper end be fixed on the valve rod by nut by upper and lower two clamping plate, the upper end of hyperbaric chamber crimp ring be pressed on upper press cover with
Between the cover, its lower end leans against on the nut by pressing spring.Its feature is that also the water inlet on the valve body is provided with two or more.Its feature is that also the crimp ring in hyperbaric chamber and the low pressure chamber adopts rubber to make.
The utility model is owing to adopted crimp ring respectively in hyperbaric chamber and low pressure chamber, thereby its good seal performance, voltage regulation result is good, and whole voltage stabilizing process is the dynamically balanced process of waterpower and elastic force, set up the pressure relief value of certain value at rotatable handle after, this voltage stabilizing balance just can be regulated automatically; Because pressure regulation is regulated according to the local loss principle of waterpower, therefore the pressure regulation amplitude is big, simultaneously, this valve can not only subtract hydrodynamic pressure, can also subtract hydrostatic pressure, and have that processing is simple, assembling and easy to maintenance, characteristics, the water supply network engineering that is applicable to mountain region, a chain of undulating hills area, the supply channel of boiler feed water such as cost is low, also can be used in the transverse tube or standpipe of each layer of tall building of the big scale of construction.
Accompanying drawing is a structure principle chart of the present utility model.
Below in conjunction with accompanying drawing the utility model is further described.
The utility model as shown in drawings, comprise valve body 1, seal gasket press cover 2, valve seat 3, sealed bolster 4, spring 5, sealing ring 6, bottom 7, valve 8, valve pressing plate 9, copper sheathing 10, pressure regulation spring 11, pressure regulation spring back shaft and cover 12, upper press cover 14, screw press 15, handle 16, nut 17,
Cover 19, valve rod 21, little spring 23, O type circle bowl 24, O type circle 25, sealing ring 6 are arranged between valve body 1 and the bottom 7, at bottom 7 fairlead is arranged, valve 8 places on the fairlead, spring 5 place in the fairlead and valve 8 between, sealed bolster 4 places between valve 8 and the valve seat 3, be fixed on the valve 8 by seal gasket press cover 2 and valve pressing plate 9, copper sheathing 10 is fixed on valve stops on 1,
Have a water inlet duct 26 on cover 19 and the valve body 1,
Be provided with a piston hole in the cover 19, piston hole is divided into hyperbaric chamber 29 and low-pressure chamber 28, and hyperbaric chamber 29 is on top, and low-pressure chamber 28 is characterized in that in the bottom valve body 1 around copper sheathing 10 is provided with inlet opening 27,
The piston hole that covers 19 interior settings is one the piston hole of step to be arranged, hyperbaric chamber 29 at an upper portion thereof is littler than the low-pressure chamber 28 of its underpart, water inlet duct 26 is communicated with hyperbaric chamber 29, inlet opening 27 is communicated with low-pressure chamber 28, in hyperbaric chamber 29 and low-pressure chamber 28, be respectively arranged with hyperbaric chamber crimp ring 13, clamp nut 22, clamping plate 20, low-pressure chamber crimp ring 18, the lower end of low-pressure chamber crimp ring 18 be pressed on valve body 1 with
Between the cover 19, its upper end is fixed on the valve body 21 by nut 22 by two clamping plate 20 up and down, the upper end of hyperbaric chamber crimp ring 13 be pressed on upper press cover 14 with
Between the cover 19, its upper end leans against on the nut 22 by pressing spring 11. Be further characterized in that the inlet opening 27 on the valve body 1 is provided with two or more. Be further characterized in that the crimp ring 13 and 18 in hyperbaric chamber 29 and the low-pressure chamber 28 adopts rubber to make. When valve was worked, the left side of valve was water under high pressure, and the right side is low-pressure water, and the active forces that impel valve 8 to open downwards are three part power: i.e. high-pressure side water pressure in the hyperbaric chamber 29 on valve body top; The downward thrust that pressure spring 11 produces; And the deadweight of valve rod 21 and valve 8. The active force that impels valve 8 upwards to close is two part power: i.e. the upwards thrust of the water pressure of the depressurised side in the low-pressure chamber 28, and spring 5. Its decompression process is: the High-Pressure Water in valve left side enters hyperbaric chamber, top 29 through water inlet duct 26, and valve 8 is opened under the promotion of the downward active force of above-mentioned three parts, and current flow to the user with certain flow by valve 8; Because current produce the local hydraulic loss at valve 8 places, so the hydraulic pressure behind the flow path valve 8 just reduces, the size that the numerical value of its decompression is opened with valve 8 becomes, and the valve open degree is more little, and the local hydraulic loss value is just more big, and pressure relief value is also just more big, otherwise, as the same. Its voltage stabilizing process is: in the flow direction user, there is a small amount of decompression water to flow into low-pressure chamber 28 by water hole 27, valve 8 has been played one upwards closes, because low-pressure chamber 28 is bigger than hyperbaric chamber 29, just the hydraulic pressure Area Ratio hyperbaric chamber 29 of low-pressure chamber 28 is big, this water pressure that partly makes progress plays a part by-pass valve control and opens, when user's water consumption increases, the hydraulic pressure on valve right side descends, the high and low pressure reduction of valve strengthens, the downward power that acts on the valve rod 21 increases, and valve is opened greatly, also increases by valve flow thereupon. At this moment, the upwards also corresponding increasing of thrust that acts in the low-pressure chamber 18, it makes valve that the trend of upwards making closing movement be arranged, and with the maintaining valve right side certain steady pressure is arranged. On the contrary, if user's water consumption reduces, upwards thrust increase impels valve 8 to turn down, still in the low-pressure chamber 18, when valve turns down, the local hydraulic loss at valve 8 places is with regard to corresponding increase, and it plays again adjusts the upwards value of thrust of low-pressure chamber 28, with the maintaining valve right side one stable force value is arranged, like this, just the pipeline behind the valve has been played voltage stabilizing. When water not, the thrust that makes progress in the low-pressure chamber 18 is bigger, impel valve 8 to close, so it also can subtract hydrostatic pressure. The pressure regulation amplitude of valve can utilize screw press 15 to adjust by handle 16, and turning handle 16 is transferred to required force value and is got final product. If in robot control system(RCS), then can install additional Servomotor is realized the pressure regulation process.
Embodiment: valve body 1 of the present utility model can adopt iron casting after machining forms, crimp ring 13 and 18 can adopt butyronitrile rubber or fluorine rubber or soft plastic to make, seal ring 6, O type circle bowl 24, O type circle 25 can adopt rubber to make, spring 5, pressure regulation spring 11, little spring 23 can adopt spring steel to make, nut 22 and 17 can adopt standard piece, other part can adopt the machining of common metal material to form, more than each parts get final product by being assembled shown in the accompanying drawing.
Claims (3)
1, a kind of Pressure-stabilizing pressure reducing valve, comprise valve body (1), seal gasket press cover (2), valve base (3), sealed bolster (4), spring (5), seal ring (6), bottom (7), valve (8), valve pressing plate (9), copper sheathing (10), pressure regulation spring (11), pressure regulation spring back shaft and cover (12), upper press cover (14), screw press (15), handle (16), nut (17),
Cover (19), valve rod (21), little spring (23), O type circle bowl (24), O type circle (25), seal ring (6) is arranged between valve body (1) and the bottom (7), on bottom (7), a guide sleeve is arranged, valve (8) places on the guide sleeve, spring (5) places in the guide sleeve and between the valve (8), sealed bolster (4) places between valve (8) and the valve base (3), is fixed on the valve (8) by seal gasket press cover (2) and valve pressing plate (9), copper sheathing (10) is fixed on the valve body (1),
Have a water inlet duct (26) on cover (19) and the valve body (1),
Be provided with a piston hole in the cover (19), piston hole is divided into hyperbaric chamber (29) and low pressure chamber (28), and hyperbaric chamber (29) on top, low pressure chamber (28) is in the bottom, the valve body (1) on every side of copper sheathing (10) that is characterised in that of the present utility model is provided with water inlet (27)
The piston hole that is provided with in the cover (19) is one the piston hole of step to be arranged, hyperbaric chamber at an upper portion thereof (29) is littler than the low pressure chamber (28) of its underpart, water inlet duct (26) is communicated with hyperbaric chamber (29), water inlet (27) is communicated with low pressure chamber (28), in hyperbaric chamber (29) and low pressure chamber (28), be respectively arranged with hyperbaric chamber crimp ring (13), gland nut (22), clamping plate (20), low pressure chamber crimp ring (18), the lower end of low pressure chamber crimp ring (18) be pressed on valve body (1) with
Between the cover (19), its upper end is fixed on the valve rod (21) by nut (22) by two clamping plate (20) up and down, the upper end of hyperbaric chamber crimp ring (13) be pressed on upper press cover (14) and
Between the cover (19), its lower end leans against on the nut (22) by pressing spring (11).
2, a kind of Pressure-stabilizing pressure reducing valve according to claim 1 is characterized in that the water inlet (27) on the valve body (1) is provided with two or more.
3,, it is characterized in that crimp ring (13) and (18) in hyperbaric chamber (29) and the low pressure chamber (28) adopt rubber to make according to claim 1 or 2 described a kind of Pressure-stabilizing pressure reducing valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93234844 CN2189681Y (en) | 1993-10-16 | 1993-10-16 | Pressure-stablized compression release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93234844 CN2189681Y (en) | 1993-10-16 | 1993-10-16 | Pressure-stablized compression release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2189681Y true CN2189681Y (en) | 1995-02-15 |
Family
ID=33810414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93234844 Expired - Fee Related CN2189681Y (en) | 1993-10-16 | 1993-10-16 | Pressure-stablized compression release valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2189681Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453871C (en) * | 2004-12-08 | 2009-01-21 | 刘敬善 | Stabilivolt type pressure reducer |
| CN102720870A (en) * | 2012-06-18 | 2012-10-10 | 张松 | Water flow regulation distributing valve for high-rise building water supply and regulating and use method thereof |
| CN105041633A (en) * | 2015-09-01 | 2015-11-11 | 沈方雄 | Multifunctional valve box gland |
-
1993
- 1993-10-16 CN CN 93234844 patent/CN2189681Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453871C (en) * | 2004-12-08 | 2009-01-21 | 刘敬善 | Stabilivolt type pressure reducer |
| CN102720870A (en) * | 2012-06-18 | 2012-10-10 | 张松 | Water flow regulation distributing valve for high-rise building water supply and regulating and use method thereof |
| CN102720870B (en) * | 2012-06-18 | 2013-11-13 | 张松 | Water flow regulation distributing valve for high-rise building water supply and regulating and use method thereof |
| CN105041633A (en) * | 2015-09-01 | 2015-11-11 | 沈方雄 | Multifunctional valve box gland |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |